Nintendo (recommends) that Switch owners only buy officially licensed Switch products . . . Unlicensed products and accessories do not undergo Nintendo’s testing and evaluation process. They might not work at all with our game systems, and they could have compatibility problems with certain games, the Nintendo Switch system itself, and other licensed accessories and peripherals.

Additionally, a Nyko representative told the site the following regarding its own dock:

“(Nyko is) aware of the issue some Portable Docking Kit owners are facing after updating the firmware on their Nintendo Switch to version 5.0. Though further testing is still required to determine the exact root cause of the problem, we believe it is related to the way the Switch handles AV output for an external TV/monitor while the console is docked on the Portable Docking Kit.”